Watch Ben 10 Alien Force Vendetta Season 3 Episode 18 Online Stream. Kids love ben and the gang. thanks to the great series it has bring. With the latest episode comes, i am sure that it they will get more excited about it. The new episode is entitled as the Ben 10 Alien Force Vendetta Season 3 Episode 18. In this episode, Kevin returns home to find his house ransacked, so he enlists Ben and Gwen's help to find out who did it and why. They soon cross paths with Ragnarok, a deadly criminal who recently broke free from the Null Void and is in search of a special key. Kevin is intent on stopping Ragnarok from obtaining the special key, especially after he learns the truth about Ragnarok and his father. The Ben 10 Alien Force Vendetta will be aired on february 12, 2010 8:30 PM on CARTOON network. Watch Ben 10 Alien Force Vendetta Season 3 Episode 18 Online Stream.